Newbie in Rx7 FC

[Ender]

To avoid confusion, RE is not appropriate shorthand for just any rotary engine.

I would definitely drive it before making any kind of decision on it, especially since it's Craigslist. The air pump is not connected (not sure if there are other outlets, I don't think there are, someone else will know that), you may not have fresh air running to the catalytic converter (assuming there is one) and the auxiliary port activators may not work, which can mean it will run poorly at WOT (wide open throttle) at higher RPM. I think I've heard there are other ways to hook those up so you can remove your air pump. If it does lack power up top I would guess that's a key reason and could possibly be a bargaining point to your advantage. These cars tend to have the same problems any old car does, poor electrical connections, leaking fluids, misalignment... but specifically for rotaries they can sometimes run, albeit poorly, with a blown motor. If it sounds really choppy and lacks decent power it could be blown, the easiest way to check this is to do a compression check, which if you don't do anything else I suggest you should at least do a compression check.

Do you have more information? I would find out why it was swapped for a later drive train to have damn near the same power output... Mileage? Crash history?